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Commit Graph

71 Commits

Author SHA1 Message Date
Thomas Harte
46ee98639e Stubs in $c010.
Also reduces memory map logging.
2020-11-04 21:35:11 -05:00
Thomas Harte
9e2a6526d1 Corrects interpretation of bit 3 of the state register.
And attempts to be a bit more careful with the language card in general.
2020-11-04 21:15:10 -05:00
Thomas Harte
d3c7253981 Shifts size-limiting of X and Y to transitions and mutations, away from reads.
Primarily to remove potential bug-causing complexity — this is easier to debug. But let's see.
2020-11-04 20:35:41 -05:00
Thomas Harte
0178aaee2b Attempts retroactively to enforce the rule that 8-bit index modes => no top byte.
(Rather than a preserved but ignored top byte)
2020-11-02 18:55:28 -05:00
Thomas Harte
45f5896b76 Stubs video switches into the IIgs. 2020-10-31 20:39:32 -04:00
Thomas Harte
0d562699a2 Ensures unmapped regions are really unmapped. 2020-10-29 22:18:01 -04:00
Thomas Harte
94a6da6b7d Exposes much of the auxiliary and language card stuff to the IIgs bus. 2020-10-28 21:58:20 -04:00
Thomas Harte
0a91ac5af5 Adds some extra notes, starts getting into trying to run the IIgs. 2020-10-27 22:09:45 -04:00
Thomas Harte
ad93ad6018 Attempts to finish off shadowing. 2020-10-27 22:05:04 -04:00
Thomas Harte
0c700094ea Goes branchless on shadowing. 2020-10-27 21:56:03 -04:00
Thomas Harte
20631a157b Contorts somewhat in pursuit of branchless shadowing regardless of page and without extra storage. 2020-10-27 21:37:39 -04:00
Thomas Harte
e44f95a882 Takes a first, faltering shot at shadowing. 2020-10-27 19:49:47 -04:00
Thomas Harte
31cd45f8b5 Takes a run at set_card_paging and simplifies method of shadowing. 2020-10-27 19:33:47 -04:00
Thomas Harte
74f9f6ad3b Tests and corrects ROM access beyond bank $00. 2020-10-27 19:02:15 -04:00
Thomas Harte
1dfdb51e61 Hits a few other easy cases.
Still to do: card paging, and finding out which banks that applies to, and shadowing. So: everything with flags.
2020-10-26 21:49:47 -04:00
Thomas Harte
18832dc19d Attempts to expand the language card stuff to all affected pages. 2020-10-26 20:30:41 -04:00
Thomas Harte
3dee0666cb Corrects current bank $00 language card behaviour. 2020-10-26 17:46:40 -04:00
Thomas Harte
f830f6a57a Adds failing test of initial ROM mirroring.
It's the end of the evening, so this is it for today.
2020-10-25 22:13:54 -04:00
Thomas Harte
82c733c68c Adds some very basic actual tests. 2020-10-25 21:40:50 -04:00
Thomas Harte
ed510409c4 Starts memory map test class, already finding a typo. 2020-10-25 21:31:21 -04:00
Thomas Harte
7614eba4bf Factors out the IIgs memory map logic.
As testing would be rational.
2020-10-25 21:10:04 -04:00